Improvement in waste-pipe valves



J. Q ADAMS. Waste-Pipe Valve;

No. 206,207. Patented. July, 23, I878.

WITNESSES I INVENTOR: @iilw Mama, m/Ma ATTORNEYS.

UNITED STATES PATENT OFFIeE.

JOHN Q. ADAMS, Ola BROOKLYN, XEV YORK.

' IMPROVEMENT-IN WASTE-PIPE VALVES.

Specification forming part of Letters Patent No. 206,207, dated July 23, 1878; application filed June 7 .To all whom it may concern:

Be it known that 1, JOHN Q. ADAMS, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in aste-Pipe Valves, of which the following is a specification:

Figure 1 is a side view, partly in section, of my improved device, shown as applied to a wash-bowl, the valve being shown closed. Fig. 2 is the same view as Fig. 1, but showing the valve open. Fig. 3 is a bottom view of the same, partlyin section, through the line w a, Fig. 1.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved means for preventing sewer gas from passing into the room through the wastepipes of wash-basins, bathtubs, privy-basins, &e., which shall be simple in construction and effective in use.

I will describe my invention as applied to a wash-basin, but do not wish to confine myself to that application, as it may be applied with equal facility and advantage to bathtubs, privy-basins, &c.

A represents the frame or casing, and 13 the top, of awash-basin stand. (3 is a wash-basin, which is secured to the top B in the usual way. In the bottom of the basin (J is formed a discharge-opening, c, and in its side, near its top, is formed an overfiow-opening, c", in the usual way.

The discharge-opening a is closed upon the lower side of the bottom of the basin 0 by a plug-valve, 1), opening downward, and which is rigidly connected with the shaft of a crank, i The shaft of the crank E works in stuffingboxes in the sides of the valve-chamber F, attached to the bottom of the basin 0, around its discharge-opening c.

To the end of the crank-arm E is pivoted the end of a connecting-rod, G, the other end of which is pivoted to the outer end of the arm H, rigidly attached to the lower end of the red I. The red I passes up through a bearing in the top I and has a knob or other handle, J, attached to its upper end for convenience in operating it.

Upon the upper part of the rod 1. is placed a spiral spring, K, one end of which is connected with the said rod I, and its other end is connected with the top I), or with the bearings in which the rod I works. The spring K is so arranged as to turn the rod I in such a direction as to close the valve 1), and thus prevent the possibility of the said valve being left open.

L is the overflo\vipe, the upper end of which is secured to the basin 0 around the overflow-opening o The lower part of the overflow-pipe L is curved imvard and upward, and enters the lower part of the valve-chamber F. The bend f of the pipe L is such that the lower part of the said pipe may always be tilled with water, to serve as a trap to prevent the sewer-gas from passing up through the said overflow-pipe L. The passage of the sewer-gas through the overflow-pipe L is further prevented by a valve, M, connected with the end of the said pipe L in such a way as to be opened by the pressure of the escaping overflow-water, and to be closed by its own weight when the said pressure stops.

Having thus described my invention, I claim as new and desire to secure by Letters latcut-- 1. The combination, with basin 0, having outlets e 0 ot' the chambcrF, having avalvc, l), at the lower end of the neck,that connects with basin,'aiul the curved waste-pipe trap L, having valve M, as and for the purpose specified.

2. The combination of the downwardlyopeniug plug-valve l), the crank 1*, the corn neeting-rod G, the arm II, the rod I, and the spring K with the discharge-opening-of a basin or tub, substantially as herein shown and described.

Janus T. GRAHAM,

U. Snnewilen'. 

